package com.fjb.tool.map;

import java.util.HashMap;
import java.util.Set;

public class HashMapDemo {
	
	public static void main(String[] args) {
		String str1 = "123456";
		int hashCode = str1.hashCode();
		System.out.println(hashCode);
		
		String str2 = "123456";
		int hashCode2 = str2.hashCode();
		System.out.println(hashCode2);
		
		HashMap<String,Object> hashMap = new HashMap<String,Object>();
		hashMap.put("12345", 123456);
		
		
		Set<String> keySet = hashMap.keySet();
		
		
		
	}
	
}
